Durable, in suburban environments, standard galvanized rustproofing can last 50 years or more without repair. In urban or offshore areas, a standard galvanized rustproof coating can last up to 20 years without repair.
Reliability. The galvanized coating is metallurgically bonded to the steel and becomes part of a rigid surface, making the coating's durability relatively reliable.
The coating is tough, and the galvanized layer forms a special metallurgical structure that can withstand mechanical damage during transportation and use.
Integrity protection: All parts of the plated parts can be galvanized, even in depressions, sharp corners and hidden places.
Saves both time and labor. Galvanizing is faster than other painting methods and avoids the time required for on-site painting after installation.
Galvanized steel coil is a kind of thin steel sheet dipped into a bath of dissolved zinc so that it sticks to a layer of zinc on the surface. At present it mainly uses continuous galvanizing process which is to immerse steel coils in zinc dissolved tank continuously to produce galvanized steel sheets and to alloy galvanized steel sheet.This kind of steel sheet is made by hot dipping,and heated to 500ºC mmediately after it come out of the zinc tank to form an alloy film of zinc and iron. It has an excellent coating adhesion and weldabiity.
Performance and major applications:
The zinc crystals on the surface of galvanized steel show a pattern of scales or blades.The solid galvanized layer provides excellent corrosion resstance,good welding and cold forming properties.The use of galvanized steel can be divided into general use,roofing,corrugated board building side panel structure, deep drawing and so on.
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Steel Material Dx51d, Dx52D, Dx53D Zinc Coated Corrugated Galvanized Steel Roofing Sheet
GI Roofing Steel Sheet common size as follows
1) 762mm to 665mm(after corrugated)and 9 waves
2) 914mm to 750mm(after corrugated)and 11 waves
3) 1000mm to 890 or 900mm(after corrugated)and 12 or 14 waves
Thick | 0.13-1.0/BWG/AWG |
Width before corrugated | 762-1200 mm |
Width after corrugated | 600-1000mm |
Zinc Coating | 30-275G/M2 |
Weight | 2-4 Tons |
Standard | ASTM-A653; JIS G3302; EN10147;etc |
Payment Terms | T/T, LC, Paypal, O/A, DP |
Regular Order | 25 tons or one container, for less quantity, to contact with us for details |
Hardness | Soft hard(HRB60),medium hard(HRB60-85),full hard(HRB85-95) |
Surface Structure | Regular spangle,Minimum spangle, Zero spangle, Big spangle |
Surface Treatment | Chromated/Non-Chromated, Oiled/Non-oiled, Skin pass |
Index | Regular spangle | Zero spangle |
Galvanized Steel Coil/Sheets | Galvanized Steel Coil/Sheets | |
Thickness | 0.13-2.50mm | 0.20-2.0mm |
Width | 600~1500mm | 600~1500mm |
Zinc Coating | Z30~Z400 g/㎡ | Z30~Z275 g/㎡ |
Surface Treatment | Passivated / Chromated 6+,3+, Free; | Skin passed, Chromated 6+, 3+, Free |
Oiled | Oiled, AFP (anti-finger print) | |
Steel Grade | DX51D/52D/53D/ | DX51D/52D/53D/ |
S250GD/280GD/350GD/550GD | S250GD/280GD/350GD/550GD | |
ASTM A653M, SS255-SS550 | ASTM A653M, SS255-SS550 | |
JIS G3302-SGCC, SGCH (Full hard-G550) | JIS G3302-SGCC, SGCH (Full hard-G550) | |
Coil I.D. | 508 / 610 mm | 508 / 610 mm |
Coil weight | 2 ~ 20 tons | 2 ~ 20 tons |
Packaging | Standard export packing ( Eye to Side) | |
Vertical Packing ( Eye to Sky) with wooden pallet | ||
Horizontal Packing ( Eye to Side) with wooden pallet | ||
MOQ. | 16 tons | 16 tons |
Loading port | Tianjin / Qingdao / Rizhao port | |
Usage | Purlins, light steel frame, ventilation duct, downpipe, round pipe, square pipe, roof panel, corrugated sheets. | Coated steel coil production, household appliances ( pre-coated metal PCM) |
Roof panel, corrugated sheets |
Application | Steel Grade | Standard | Function & Characteristics |
Stamping Steel China Steel Grade | DX51D+Z, DX51D DX52D+Z, DX52D DX53D+Z, DX53D DX54D+Z, DX54D | GB/T 2518 | Including materials for general use, mechanical biting(LFQ Lock Forming quality), deep drawing, and ultra deep drawing. The coating and welding performance of alloying hot-dip galvanizing are superior. |
Structural Steel | S250GD+Z, S250GD | GB/T 2518 | Structural steel is generally used for important purposes such as load-bearing, and is often used in steel structure projects, with good corrosion resistance and processing performance |
S280GD+Z, S280GD | |||
S350GD+Z, S350GD | |||
S450GD+Z, S450GD | |||
S500GD+Z, S500GD | |||
S550GD+Z, S550GD |
DECHO building colour steel plate can meet the need to use colour steel plate as raw material for building. Decho Building Materials colour steel plate is mainly processed into, for example, colour steel corrugated board or colour steel composite sandwich board after our colour steel plate is widely used in the construction of airports, freezers, steel plants, warehouses, and other industrial buildings and commercial buildings, such as the roof of the colour steel tiles, colour steel plate sandwich walls and doors.
Reasons for choosing Decho Building Materials new material:
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